Need help on setting D-Bus

Yedire, Sandeep syedire at gmail.com
Mon Sep 27 22:03:46 PDT 2010


Thanks for your reply.
do you have user "messagebus" or "dbus" user created by launch script. Is
> the libdbus correctly available in the configuration file. .
[Sandeep]I do not have messagebus or dbus user created by launch
script ps -elf | grep dbus  do not show any.
How do I check libdbus correctly available in the configuration file?
Please let me know.

> How does your launch script looks like. What is causing segmentation fault?
Please find the conf file attached to this email.
My configure params for dbus-1.2.24 is like this:

./configure  --host=mipsel-linux --prefix=/opt/btaudio
CC=mipsel-linux-gcc  --libexecdir=/opt/btaudio/lib/
--includedir=/opt/btaudio/include LDFLAGS=-L/opt/btaudio/lib/
LIBS=-lexpat --oldincludedir=/opt/btaudio/include/
CFLAGS=-I/opt/btaudio/include --without-x --enable-tests
--localstatedir=/var

I have installed glib-2.15 separately
and now on the target I tried to execute
>export DBUG_VERBOSE=1
>dbus-daemon --system

I get seg fault. I understand dbus-daemon built from script files but
having not clue where this is causing seg fault. Is it because its
dependent on any other files?

Also, during the configuring of dbus-1.2.24, I do not see few files ,
system_bus_sockets in /var/run/dbus/ and no PID file in path
/var/run/messagebus.pid  being built during the configuration process.
Please find my config.txt file attached along with this file.

Regards,
Sandeep.Yedire

----------------------------------------------------------
T.Jefferson, 'Victory and defeat are each of the same price"



On 27 September 2010 22:58, Sathia Narayanan <msathia at gmail.com> wrote:
> do you have user "messagebus" or "dbus" user created by launch script. Is
> the libdbus correctly available in the configuration file. .
>
> How does your launch script looks like. What is causing segmentation fault?
> very little information is actually available from your mail to understand
> what is happening
> regards,
> Sathia
>
> On Mon, Sep 27, 2010 at 10:17 AM, Yedire, Sandeep <syedire at gmail.com> wrote:
>>
>> Hello there,
>> I am newbie to D-Bus. I am currently setting up connection for
>> Bluetooth Head-set and Target(MIPS ARC).  When I tried sending the
>> pass key to headset thru passkey agent, I get error message "Cant get
>> on system bus". I googled and found its related to D-Bus.
>>
>> I have cross-compiled the dbus-1.2.24, expat, glib libraries and also
>> built bluez-4.69.
>> During the build of D-Bus I don't see system_bus_socket file being
>> created in that directory during the build process.
>>
>> After login into target as root, I tried executing below commands
>> >export DBUG_VERBOSE=1
>> >dbus-daemon --system
>>
>> But the dbus-daemon is not started. Instead I get segmentation fault.
>>
>> My doubt: How do I start dbus-daemon on target? I understand this
>> needs to be running to establish communication between two
>> applications.
>> How do I start this daemon?
>> FYI my kernel version on target 2.6.18.
>>
>> Please suggest on this.
>>
>>
>> Regards,
>> Sandeep.Yedire
>>
>> ----------------------------------------------------------
>> T.Jefferson, 'Victory and defeat are each of the same price"
>> _______________________________________________
>> dbus mailing list
>> dbus at lists.freedesktop.org
>> http://lists.freedesktop.org/mailman/listinfo/dbus
>
>
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configure: creating ./config.status
config.status: creating Doxyfile
config.status: creating dbus/dbus-arch-deps.h
config.status: creating bus/system.conf
config.status: creating bus/session.conf
config.status: creating bus/messagebus
config.status: creating bus/rc.messagebus
config.status: creating bus/dbus-daemon.1
config.status: creating Makefile
config.status: creating dbus/Makefile
config.status: creating bus/Makefile
config.status: creating tools/Makefile
config.status: creating test/Makefile
config.status: creating test/name-test/Makefile
config.status: creating doc/Makefile
config.status: creating dbus-1.pc
config.status: creating test/data/valid-config-files/debug-allow-all.conf
config.status: creating test/data/valid-config-files/debug-allow-all-sha1.conf
config.status: creating test/data/valid-config-files-system/debug-allow-all-pass.conf
config.status: creating test/data/valid-config-files-system/debug-allow-all-fail.conf
config.status: creating test/data/valid-service-files/org.freedesktop.DBus.TestSuite.PrivServer.service
config.status: creating test/data/valid-service-files/org.freedesktop.DBus.TestSuiteEchoService.service
config.status: creating test/data/valid-service-files/org.freedesktop.DBus.TestSuiteForkingEchoService.service
config.status: creating test/data/valid-service-files/org.freedesktop.DBus.TestSuiteSegfaultService.service
config.status: creating test/data/valid-service-files/org.freedesktop.DBus.TestSuiteShellEchoServiceSuccess.service
config.status: creating test/data/valid-service-files/org.freedesktop.DBus.TestSuiteShellEchoServiceFail.service
config.status: creating test/data/valid-service-files-system/org.freedesktop.DBus.TestSuiteEchoService.service
config.status: creating test/data/valid-service-files-system/org.freedesktop.DBus.TestSuiteSegfaultService.service
config.status: creating test/data/valid-service-files-system/org.freedesktop.DBus.TestSuiteShellEchoServiceSuccess.service
config.status: creating test/data/valid-service-files-system/org.freedesktop.DBus.TestSuiteShellEchoServiceFail.service
config.status: creating test/data/invalid-service-files-system/org.freedesktop.DBus.TestSuiteNoExec.service
config.status: creating test/data/invalid-service-files-system/org.freedesktop.DBus.TestSuiteNoUser.service
config.status: creating test/data/invalid-service-files-system/org.freedesktop.DBus.TestSuiteNoService.service
config.status: creating config.h
config.status: config.h is unchanged
config.status: executing depfiles commands
config.status: executing libtool commands

                    D-Bus 1.2.24
                  ==============

	prefix:                   /opt/btaudio
	exec_prefix:              ${prefix}
        libdir:                   /opt/btaudio/lib
        libexecdir:               /opt/btaudio/lib
        bindir:                   /opt/btaudio/bin
        sysconfdir:               /opt/btaudio/etc
        localstatedir:            /var
	datadir:                  /opt/btaudio/share
	source code location:	  .
	compiler:		  mipsel-linux-gcc
	cflags:		          -ffunction-sections -fdata-sections -I/opt/btaudio/include -Wall -Wchar-subscripts -Wmissing-declarations -Wmissing-prototypes -Wnested-externs -Wpointer-arith -Wcast-align -Wdeclaration-after-statement -fno-common -Wno-unused -Wno-sign-compare -Wno-pointer-sign -fno-strict-aliasing
	cppflags:		  
	cxxflags:		  -g -O2
	64-bit int:		  long long
	32-bit int:		  int
	16-bit int:		  short
        Doxygen:                  /usr/bin/doxygen
        xmlto:                    /usr/bin/xmlto

        Maintainer mode:          no
        gcc coverage profiling:   no
        Building unit tests:      yes
        Building verbose mode:    no
        Building assertions:      no
        Building checks:          yes
        Building SELinux support: no
        Building inotify support: yes
        Building dnotify support: no
        Building kqueue support:  no
        Building X11 code:        no
        Building Doxygen docs:    yes
        Building XML docs:        yes
        Building cache support:   yes
        Gettext libs (empty OK):  
        Using XML parser:         
        Init scripts style:       redhat
        Abstract socket names:    no
        System bus socket:        /var/run/dbus/system_bus_socket
        System bus address:       unix:path=/var/run/dbus/system_bus_socket
        System bus PID file:      /var/run/messagebus.pid
        Session bus socket dir:   /tmp
        Console auth dir:         /var/run/console/
        Console owner file:       no
        Console owner file path:  
	System bus user:          messagebus
	Session bus services dir: /opt/btaudio/share/dbus-1/services
        'make check' socket dir:  /tmp

NOTE: building with unit tests increases the size of the installed library and renders it insecure.
NOTE: building with unit tests but without assertions means tests may not properly report failures (this configuration is only useful when doing something like profiling the tests)
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